CN205159404U - Lithium ion battery module, lithium ion battery case and car - Google Patents
Lithium ion battery module, lithium ion battery case and car Download PDFInfo
- Publication number
- CN205159404U CN205159404U CN201520984382.6U CN201520984382U CN205159404U CN 205159404 U CN205159404 U CN 205159404U CN 201520984382 U CN201520984382 U CN 201520984382U CN 205159404 U CN205159404 U CN 205159404U
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- China
- Prior art keywords
- lithium ion
- ion battery
- end plate
- battery module
- battery case
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a lithium ion battery module, lithium ion battery case and car, the lithium ion battery module includes: battery module unit, and end plate, end plate and battery module unit fixed connection, the end plate includes: the end plate body, deviating from of end plate body a side surface of battery module unit has the draw -in groove, and spring leaf, the spring leaf embedding extremely in the draw -in groove, wherein, the spring leaf includes: elastic deformation portion, elastic deformation portion certainly the draw -in groove is outstanding extremely beyond the end plate body, and flat section, flat section supports and leans on the internal surface of draw -in groove and with elastic deformation portion connects, elastic deformation portion produces the orientation under the exogenic action the elastic deformation of battery module unit, and pass through flat section produces will end plate body orientation the elasticity that battery module unit promoted.
Description
Technical field
The utility model relates to technical field of lithium ion, particularly a kind of lithium ion battery module, lithium ion battery case and comprise the automobile of this lithium ion battery case.
Background technology
In the soft bag lithium ionic cell module used by existing new-energy automobile, due to the characteristic of soft package lithium battery, cell in use, volume can expand, the gauge value of battery can increase, that is, lithium ion battery gauge in use can change.
After soft package lithium battery is battery modules in groups, need to be assemblied in battery case housing and form battery case, in order to meet battery modules gauge change in use, between usual battery case housing and battery modules, there is certain gap, think the space that the battery modules of expansion provides enough, but battery modules needs to fix in battery case housing, to avoid due to the damage of vibration to battery modules.
Battery modules is fixed in battery case housing by mode mostly with bolts in current battery case, the structures such as screw rod, nut, pad are comprised due to bolted end construction, usual thickness is larger, make the volume of battery case housing comparatively large, thus reduce the energy density of battery case.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of lithium ion battery module, it provides a kind of structure of flexible fastening lithium ion battery module, the gap between lithium ion battery tank shell and lithium ion battery module can not only be adjusted flexibly, and reduce the thickness of lithium ion battery module fixing arrangement, thus reduce the volume of lithium ion battery tank shell.
The utility model provides a kind of lithium ion battery module, comprising:
Battery modules unit,
End plate, described end plate is fixedly connected with battery modules unit, and described end plate comprises:
End plate body, the side surface deviating from described battery modules unit of described end plate body has draw-in groove; With
Spring leaf, described spring leaf is embedded in described draw-in groove;
Wherein, described spring leaf comprises:
Strain portion, described strain portion projects to beyond described end plate body from described draw-in groove; With
Plat part, described plat part against described draw-in groove inner surface and be connected with described strain portion, described strain portion produces the elastic deformation towards described battery modules unit under external force, and is produced the elastic force promoted towards described battery modules unit by described end plate body by described plat part.
Preferably, described spring leaf comprises:
Two strain portions, and
A plat part, the two ends of described plat part are connected in strain portion described with respectively.
Preferably, comprise further:
Bandage, described end plate and described battery modules unit bind together by described bandage.
Preferably, described draw-in groove is vertically arranged on described end plate body.
Of the present utility modelly another embodiment provides for a kind of lithium ion battery case, comprising:
Battery case housing, and
Lithium ion battery module as above, described lithium ion battery module is placed in described battery case housing, described strain portion against the inwall of described battery case housing, and produces towards the elastic deformation of described battery modules unit under the effect of described battery case housing.
Preferably, the inner length of described battery case housing is greater than the length of described lithium ion battery module, and is less than the length of described lithium ion battery module and the projecting height sum in described strain portion.
Of the present utility model another embodiment still provides a kind of automobile, and described automobile comprises above-described lithium ion battery case.
Accompanying drawing explanation
The following drawings only schematically illustrates the utility model and explains, does not limit scope of the present utility model.
Fig. 1 is the structural representation of lithium ion battery module of the present utility model.
Fig. 2 is the structural representation of the end plate in the utility model.
Fig. 3 is the schematic cross-section of the end plate in the utility model.
Fig. 4 is the structural representation of lithium ion battery case of the present utility model.
Fig. 5 is the assembling schematic diagram of lithium ion battery case of the present utility model.
Fig. 6 is the schematic partial cross-sectional view of lithium ion battery case of the present utility model.
Label declaration:
1 lithium ion battery module
10 battery modules unit
20 end plates
21 end plate body
211 draw-in grooves
22 spring leafs
221 strain portions
222 plat parts
30 bandages
2 lithium ion battery casees
40 battery case housings
Embodiment
In order to the technical characteristic to utility model, object and effect have understanding clearly, now contrast accompanying drawing and embodiment of the present utility model is described, label identical in the various figures represents identical part.
In this article, " schematically " expression " serves as example, example or explanation ", not should by being described to any diagram of " schematically " in this article, execution mode is interpreted as a kind of preferred or have more the technical scheme of advantage.
For making simplified form, only schematically show and the utility model relevant portion in each figure, and do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of same structure or function in some figure, only schematically depict one of them, or only marked one of them.
In order to the aluminum plastic film solving lithium ion battery surface in prior art is easily by technical problem that heat-conducting plate scratches, the utility model provides a kind of lithium ion battery module group unit, and it can prevent the surface of soft bag lithium ionic cell from being scratched by heat-conducting plate when soft bag lithium ionic cell contacts with heat-conducting plate.
Fig. 1 is the structural representation of lithium ion battery module of the present utility model.Fig. 2 is the structural representation of the end plate in the utility model.As depicted in figs. 1 and 2, in one embodiment, a kind of lithium ion battery module 1 comprises:
One or more battery modules unit 10,
End plate 20, end plate is fixedly connected with battery modules unit 10, under normal circumstances; as shown in Figure 1; battery modules 1 comprises two end plates, 20, two end plates 20 and clamps therebetween by one or more battery modules unit 10, to realize the object protecting battery modules unit 10.But be understandable that, lithium ion battery module 1 also only can have an end plate 20 in the side of battery modules unit 10.
Wherein, end plate 20 comprises:
End plate body 21, side (namely towards the side beyond the lithium ion battery module 1) surface deviating from battery modules unit 10 of end plate body 21 has draw-in groove 211; With
Spring leaf 22, spring leaf 22 is embedded in draw-in groove 211, and against the inner surface of draw-in groove 211.
Wherein, shown in composition graphs 3, spring leaf 22 comprises:
Strain portion 221, the form in strain portion 221 is project to projection beyond end plate body 21 from draw-in groove 211, and it can produce elastic deformation under the External Force Acting towards end plate body 21 direction; With
Plat part 222, plat part 222 against draw-in groove 211 inner surface and be connected with strain portion 221, strain portion 221 produces the elastic deformation towards battery modules unit 10 under external force, and is produced the elastic force promoted towards battery modules unit 10 by end plate body 21 by plat part 222.
Preferably, as shown in Figure 3, spring leaf 22 comprises:
Two strain portions 221, and
A plat part 222, the two ends of plat part 222 are connected with a strain portion 221 respectively.
In addition, shown in composition graphs 1, lithium ion battery module 1 also comprises:
Bandage 30, end plate 20 and battery modules unit 10 bind together by bandage 30.
Preferably, draw-in groove 211 is vertically arranged on end plate body 21.
As shown in Figure 4, in another embodiment, a kind of lithium ion battery case 2, comprising:
Battery case housing 40, and
Lithium ion battery module 1 as previously discussed, lithium ion battery module 1 is placed in battery case housing 40.When lithium ion battery module 1 is placed in battery case housing 40, strain portion 221 against the inwall of battery case housing 40, and produces towards the elastic deformation of battery modules unit 10 under the effect of battery case housing 40.
From above technical scheme, in order to meet battery modules gauge change in use, gap is there is between the inwall of battery case housing 40 and lithium ion battery module 1, when lithium ion battery module 1 is placed in battery case housing 40, strain portion 221 is against the inwall of battery case housing 40, thus fill this gap, the pressure of inwall to strain portion 221 of battery case housing 40 makes end plate 20 pairs of battery modules unit 10 produce the thrust continued, the lasting thrust of lithium ion battery module 1 inside can not only be kept, and can lithium ion battery module 1 be fixed in battery case housing 40, it is avoided to be shifted.
When in use causing the length of lithium ion battery module 1 to increase due to cell expansion, the thrust of battery modules unit 10 pairs of ends 20 makes strain portion 221 be compressed, thus causes the gap between the inwall of battery case housing 40 and battery modules 1 to reduce.
As can be seen here, in the present embodiment, the fixed structure that spring leaf 22 provides can not only provide that a kind of structure is simple, take up room little flexible fastening, and can gap between the inwall of elasticity adjustment battery case housing 40 and lithium ion battery module 1, lithium ion battery module can not be produced when being loaded in battery case housing rock, and this fixed structure also can not limit the size growth of battery modules.
The spring leaf 22 that each end plate 20 only can have a draw-in groove 211 and be arranged in this draw-in groove 211, this draw-in groove 211 can be positioned at the vertical midline of end plate 20 usually.But be understandable that, in order to provide enough restraining forces and stable support, shown in composition graphs 2, two spring leafs 22 that each end plate 20 can have two draw-in grooves 211 and be arranged in these two draw-in grooves 211, two sides that two draw-in grooves 211 vertically can be respectively adjacent to end plate 20 are symmetrical arranged, be the support that battery modules 1 provides stable with symmetrical structure, avoid it to deflect in battery case housing 40.
Preferably, the inner length of battery case housing 40 is greater than the length of lithium ion battery module 1, and is less than the length of battery modules 1 and the projecting height sum in strain portion 221.Here, two end plates 20 are comprised for lithium ion battery module 1, the length of battery modules 1 is the length from an end plate body 21 to the nature of another end plate body 21, and the projecting height in strain portion 221 is it projects to the height beyond end plate body 21.The inner length of battery case housing 40 is greater than the length of lithium ion battery module 1, make, between lithium ion battery module 1 and battery case housing 40, there is gap, and the inner length of battery case housing 40 is less than the length of lithium ion battery module 1 and the projecting height sum in strain portion 221, make lithium ion battery module 1 when loading in battery case housing 40, battery case housing 40 by making it that elastic deformation occur to the extruding in strain portion 221, thus makes end 20 provide lasting clamping force for the battery modules unit 10 be clipped between two ends 20.
When battery modules 1 from top to down is as shown in Figure 5 placed in battery case housing 40, two strain portions 221 priorities of the spring leaf 22 of two end plates 20 and the contact internal walls of the lower house of battery case housing 40.First, the strain portion 221 of the downside of each spring leaf 22 is extruded by the inwall of battery case housing 40 and elastic deformation occurs; Then along with battery modules 1 continues to move down, the strain portion 221 of the upside of each spring leaf 22 is extruded by the inwall of battery case housing 40 and elastic deformation occurs, the elastic deformation in two strain portions 221 of the upper side and lower side promotes end plate 20 by plat part 222 and moves towards battery modules unit 10, thus provides clamping force for battery modules unit 10; Until as shown in Figure 6, the bottom surface of the end plate 20 of lithium ion battery module 1 and the contacts baseplate of battery case housing 40, two strain portions 221 of spring leaf 22 contact the inwall of battery case housing 40 completely, be then out of shape stopping.
When expanding in the use procedure of soft package lithium battery, the length dimension of lithium ion battery module 1 can become large, and the strain portion 221 of spring leaf 22 can continue to be compressed, thus offsets the increase of battery modules size.Therefore, the height in strain portion 221 needs to arrange according to the length deformation amount of battery modules 1.Be understandable that, the height in strain portion 221 is much smaller than the length of fit of bolts and nuts, and therefore, the setting in the strain portion 221 of spring leaf 22 can reduce the length of the fixed structure for battery modules 1 greatly, and then reduces the volume of battery case.
Preferably, spring leaf 22 should correspond to the lower house flange of adjacent cells tank shell 40 at the position of end plate 20, and non-adjacent base plate place, thus facilitate lithium ion battery module 1 to be placed in battery case housing 40.
In another embodiment, the lithium ion battery case 2 in above-described embodiment can be applied in the car.Certainly, this lithium ion battery case 2 installation how realized in the car is not emphasis of the present utility model, and those skilled in the art can implement this lithium ion battery case 2 installation in the car in any way, repeat no more herein.
In this article, " one " does not represent the restricted number of the utility model relevant portion is " only this ", and " one " does not represent the situation of the quantity " more than one " getting rid of the utility model relevant portion.
A series of detailed description listed is above only illustrating for feasibility execution mode of the present utility model; and and be not used to limit protection range of the present utility model; allly do not depart from the utility model skill equivalent embodiments of doing of spirit or change; as the combination of feature, segmentation or repetition, all should be included within protection range of the present utility model.
Claims (7)
1. a lithium ion battery module (1), is characterized in that, comprising:
Battery modules unit (10),
End plate (20), described end plate is fixedly connected with battery modules unit (10), and described end plate (20) comprising:
End plate body (21), the side surface deviating from described battery modules unit (10) of described end plate body (21) has draw-in groove (211); With
Spring leaf (22), described spring leaf (22) is embedded in described draw-in groove (211);
Wherein, described spring leaf (22) comprising:
Strain portion (221), described strain portion (221) projects to beyond described end plate body (21) from described draw-in groove (211); With
Plat part (222), described plat part (222) against described draw-in groove (211) inner surface and be connected with described strain portion (221), described strain portion (221) produces the elastic deformation towards described battery modules unit (10) under external force, and is produced the elastic force promoted towards described battery modules unit (10) by described end plate body (21) by described plat part (222).
2. lithium ion battery module (1) as claimed in claim 1, it is characterized in that, described spring leaf (22) comprising:
Two strain portions (221), and
A plat part (222), the two ends of described plat part (222) respectively strain portion (221) described with are connected.
3. lithium ion battery module (1) as claimed in claim 1, is characterized in that, comprise further:
Bandage (30), described end plate (20) and described battery modules unit (10) bind together by described bandage (30).
4. lithium ion battery module (1) as claimed in claim 1, it is characterized in that, described draw-in groove (211) is vertically arranged on described end plate body (21).
5. a lithium ion battery case (2), is characterized in that, comprising:
Battery case housing (40), and
Lithium ion battery module (1) as described in claim 1-4, described lithium ion battery module (1) is placed in described battery case housing (40), described strain portion (221) against the inwall of described battery case housing (40), and produces towards the elastic deformation of described battery modules unit (10) under the effect of described battery case housing (40).
6. lithium ion battery case (2) as claimed in claim 5, it is characterized in that, the inner length of described battery case housing (40) is greater than the length of described lithium ion battery module (1), and is less than the length of described lithium ion battery module (1) and the projecting height sum in described strain portion (221).
7. an automobile, is characterized in that, described automobile comprises the lithium ion battery case (2) as described in claim 5 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984382.6U CN205159404U (en) | 2015-12-02 | 2015-12-02 | Lithium ion battery module, lithium ion battery case and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984382.6U CN205159404U (en) | 2015-12-02 | 2015-12-02 | Lithium ion battery module, lithium ion battery case and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159404U true CN205159404U (en) | 2016-04-13 |
Family
ID=55695063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520984382.6U Active CN205159404U (en) | 2015-12-02 | 2015-12-02 | Lithium ion battery module, lithium ion battery case and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159404U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786806A (en) * | 2019-01-28 | 2019-05-21 | 深圳市易为派科技有限公司 | The preparation method of battery modules |
| CN110710022A (en) * | 2017-06-26 | 2020-01-17 | 松下知识产权经营株式会社 | Electricity storage device |
| CN111868958A (en) * | 2018-03-20 | 2020-10-30 | 松下知识产权经营株式会社 | Battery module and battery pack |
| CN112133858A (en) * | 2020-09-29 | 2020-12-25 | 中国第一汽车股份有限公司 | Battery cell module, battery pack and design method of battery pack |
| WO2021135956A1 (en) * | 2019-12-31 | 2021-07-08 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and apparatus |
| CN113540636A (en) * | 2021-03-18 | 2021-10-22 | 欣旺达电动汽车电池有限公司 | Battery module and battery pack |
| WO2022120848A1 (en) * | 2020-12-11 | 2022-06-16 | 宁德时代新能源科技股份有限公司 | Battery, power utilization apparatus, and battery manufacturing method |
| CN114930618A (en) * | 2020-12-11 | 2022-08-19 | 宁德时代新能源科技股份有限公司 | Battery, electric device and method for preparing battery |
-
2015
- 2015-12-02 CN CN201520984382.6U patent/CN205159404U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710022A (en) * | 2017-06-26 | 2020-01-17 | 松下知识产权经营株式会社 | Electricity storage device |
| CN111868958A (en) * | 2018-03-20 | 2020-10-30 | 松下知识产权经营株式会社 | Battery module and battery pack |
| CN111868958B (en) * | 2018-03-20 | 2023-04-18 | 松下知识产权经营株式会社 | Battery pack |
| CN109786806A (en) * | 2019-01-28 | 2019-05-21 | 深圳市易为派科技有限公司 | The preparation method of battery modules |
| WO2021135956A1 (en) * | 2019-12-31 | 2021-07-08 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and apparatus |
| CN112133858A (en) * | 2020-09-29 | 2020-12-25 | 中国第一汽车股份有限公司 | Battery cell module, battery pack and design method of battery pack |
| WO2022120848A1 (en) * | 2020-12-11 | 2022-06-16 | 宁德时代新能源科技股份有限公司 | Battery, power utilization apparatus, and battery manufacturing method |
| CN114930618A (en) * | 2020-12-11 | 2022-08-19 | 宁德时代新能源科技股份有限公司 | Battery, electric device and method for preparing battery |
| US11858332B2 (en) | 2020-12-11 | 2024-01-02 | Contemporary Amperex Technology Co., Limited | Battery, power consumption apparatus, and method for producing battery |
| CN114930618B (en) * | 2020-12-11 | 2024-03-29 | 宁德时代新能源科技股份有限公司 | Battery, power utilization device and method for preparing battery |
| CN113540636A (en) * | 2021-03-18 | 2021-10-22 | 欣旺达电动汽车电池有限公司 | Battery module and battery pack |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |